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exporter.py
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# Copyright (C) 2021 Victor Soupday
# This file is part of CC/iC Blender Tools <https://github.com/soupday/cc_blender_tools>
#
# CC/iC Blender Tools is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# CC/iC Blender Tools is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with CC/iC Blender Tools. If not, see <https://www.gnu.org/licenses/>.
import os
import copy
import shutil
import re
import mathutils
import math
import bpy
from filecmp import cmp
from . import bake, shaders, physics, rigging, bones, modifiers, meshutils, nodeutils, imageutils, jsonutils, utils, params, vars
UNPACK_INDEX = 1001
def check_valid_export_fbx(chr_cache, objects):
report = []
check_valid = True
check_warn = False
arm = utils.get_armature_in_objects(objects)
standard = False
if chr_cache:
standard = chr_cache.is_standard()
if standard and not arm:
if chr_cache:
message = f"ERROR: Character {chr_cache.character_name} has no armature!"
else:
message = f"ERROR: Character has no armature!"
report.append(message)
utils.log_warn(message)
check_valid = False
else:
obj : bpy.types.Object
for obj in objects:
if obj != arm and utils.object_exists_is_mesh(obj):
if standard:
armature_mod : bpy.types.ArmatureModifier = modifiers.get_object_modifier(obj, "ARMATURE")
if armature_mod is None:
message = f"ERROR: Object: {obj.name} does not have an armature modifier."
report.append(message)
utils.log_warn(message)
check_valid = False
if obj.parent != arm:
message = f"ERROR: Object: {obj.name} is not parented to character armature."
report.append(message)
utils.log_warn(message)
check_valid = False
if armature_mod and armature_mod.object != arm:
message = f"ERROR: Object: {obj.name}'s armature modifier is not set to this character's armature."
report.append(message)
utils.log_warn(message)
check_valid = False
if len(obj.vertex_groups) == 0:
message = f"ERROR: Object: {obj.name} has no vertex groups."
report.append(message)
utils.log_warn(message)
check_valid = False
# doesn't seem to be an issue anymore
if False and obj.type == "MESH" and obj.data and len(obj.data.vertices) < 150:
message = f"WARNING: Object: {obj.name} has a low number of vertices (less than 150), this is can cause CTD issues with CC3's importer."
report.append(message)
utils.log_warn(message)
message = f" (if CC3 crashes when importing this character, consider increasing vertex count or joining this object to another.)"
report.append(message)
utils.log_warn(message)
check_warn = True
return check_valid, check_warn, report
def remove_modifiers_for_export(chr_cache, objects, reset_pose):
arm = utils.get_armature_in_objects(objects)
arm.data.pose_position = "POSE"
if reset_pose:
utils.safe_set_action(arm, None)
bones.clear_pose(arm)
obj : bpy.types.Object
for obj in objects:
if chr_cache:
obj_cache = chr_cache.get_object_cache(obj)
if obj_cache:
if obj_cache.object_type == "OCCLUSION" or obj_cache.object_type == "TEARLINE" or obj_cache.object_type == "EYE":
mod : bpy.types.Modifier
for mod in obj.modifiers:
if vars.NODE_PREFIX in mod.name:
obj.modifiers.remove(mod)
def restore_modifiers(chr_cache, objects):
obj : bpy.types.Object
for obj in objects:
obj_cache = chr_cache.get_object_cache(obj)
if obj_cache:
if obj_cache.object_type == "OCCLUSION":
modifiers.add_eye_occlusion_modifiers(obj)
elif obj_cache.object_type == "TEARLINE":
modifiers.add_tearline_modifiers(obj)
elif obj_cache.object_type == "EYE":
modifiers.add_eye_modifiers(obj)
def rescale_for_unity(chr_cache, objects):
"""Do not use. Causes more problems than it solves..."""
if utils.set_mode("OBJECT"):
arm : bpy.types.Object = utils.get_armature_in_objects(objects)
if arm.scale != 1.0:
utils.try_select_object(arm, True)
bpy.ops.object.transform_apply(location = False, rotation = False, scale = True, properties = False)
object_list = []
obj : bpy.types.Object
for obj in objects:
if obj.type == "MESH" and obj.scale != 1.0:
object_list.append(obj)
if len(object_list) > 0:
utils.try_select_objects(object_list, True)
bpy.ops.object.transform_apply(location = False, rotation = False, scale = True, properties = False)
def prep_export(chr_cache, new_name, objects, json_data, old_path, new_path,
copy_textures, revert_duplicates, apply_fixes, as_blend_file, bake_values):
prefs = bpy.context.preferences.addons[__name__.partition(".")[0]].preferences
if as_blend_file:
if prefs.export_unity_remove_objects:
# remove everything not part of the character for blend file exports.
arm = utils.get_armature_in_objects(objects)
for obj in bpy.data.objects:
if not (obj == arm or obj.parent == arm or chr_cache.has_object(obj)):
utils.log_info(f"Removing {obj.name} from blend file")
bpy.data.objects.remove(obj)
if not chr_cache or not json_data:
return None
mats_processed = {}
images_processed = {}
# old path might be blank, so try to use blend file path or export target path
base_path = old_path
if not base_path:
base_path = utils.local_path()
if not base_path:
base_path = new_path
changes = []
done = []
for obj in objects:
if obj not in done:
changes.append(["OBJECT_RENAME", obj, obj.name, obj.data.name])
done.append(obj)
if obj.type == "MESH":
for mat in obj.data.materials:
if mat not in done:
changes.append(["MATERIAL_RENAME", mat, mat.name])
done.append(mat)
done.clear()
old_name = chr_cache.character_id
if new_name != old_name:
if (old_name in json_data.keys() and
old_name in json_data[old_name]["Object"].keys() and
new_name not in json_data.keys()):
# rename the object and character keys
json_data[old_name]["Object"][new_name] = json_data[old_name]["Object"].pop(chr_cache.character_id)
json_data[new_name] = json_data.pop(old_name)
chr_json = json_data[new_name]["Object"][new_name]
# create soft physics json if none
physics_json = jsonutils.add_json_path(chr_json, "Physics/Soft Physics/Meshes")
# set custom JSON data
json_data[new_name]["Blender_Project"] = True
if not copy_textures:
json_data[new_name]["Import_Dir"] = chr_cache.import_dir
json_data[new_name]["Import_Name"] = chr_cache.import_name
else:
json_data[new_name].pop("Import_Dir", None)
json_data[new_name].pop("Import_Name", None)
if chr_cache.is_non_standard():
set_non_standard_generation(json_data, chr_cache.non_standard_type, new_name)
# unpack embedded textures.
if chr_cache.import_embedded:
unpack_embedded_textures(chr_cache, chr_json, objects, base_path)
if revert_duplicates:
# get a list of all cached materials in the export back to CC3
export_mats = []
for obj in objects:
obj_cache = chr_cache.get_object_cache(obj)
if obj_cache and obj.type == "MESH":
for mat in obj.data.materials:
mat_cache = chr_cache.get_material_cache(mat)
if mat and mat_cache and mat not in export_mats:
export_mats.append(mat)
# CC3 will replace any ' ' or '.' with underscores on export, so the only .00X suffix is from Blender
# get a use count of each material source name (stripped of any blender duplicate name suffixes)
mat_count = {}
for mat in export_mats:
mat_name = mat.name
mat_safe_name = utils.safe_export_name(utils.strip_name(mat_name), is_material=True)
if mat_safe_name in mat_count.keys():
mat_count[mat_safe_name] += 1
else:
mat_count[mat_safe_name] = 1
# determine a single source of any duplicate material names, prefer an exact match
mat_remap = {}
for mat_safe_name in mat_count.keys():
count = mat_count[mat_safe_name]
if count > 1:
for mat in export_mats:
if mat.name == mat_safe_name:
mat_remap[mat_safe_name] = mat
break
elif mat.name.startswith(mat_safe_name):
mat_remap[mat_safe_name] = mat
obj : bpy.types.Object
for obj in objects:
if not utils.object_exists_is_mesh(obj):
continue
if chr_cache.collision_body == obj:
continue
utils.log_info(f"Obejct: {obj.name}")
utils.log_indent()
obj_name = obj.name
obj_cache = chr_cache.get_object_cache(obj)
source_changed = False
is_new_object = False
if obj_cache:
obj_expected_source_name = utils.safe_export_name(utils.strip_name(obj_name))
obj_source_name = obj_cache.source_name
source_changed = obj_expected_source_name != obj_source_name
if source_changed:
obj_safe_name = utils.safe_export_name(obj_name)
else:
obj_safe_name = obj_source_name
else:
is_new_object = True
obj_safe_name = utils.safe_export_name(obj_name)
obj_source_name = obj_safe_name
# if the Object name has been changed in some way
if obj_name != obj_safe_name or obj.data.name != obj_safe_name:
new_obj_name = obj_safe_name
if is_new_object or source_changed:
new_obj_name = utils.make_unique_name(obj_safe_name, bpy.data.objects.keys())
utils.log_info(f"Using new safe Object & Mesh name: {obj_name} to {new_obj_name}")
if source_changed:
if jsonutils.rename_json_key(chr_json["Meshes"], obj_source_name, new_obj_name):
utils.log_info(f"Updating Object source json name: {obj_source_name} to {new_obj_name}")
if physics_json and jsonutils.rename_json_key(physics_json, obj_source_name, new_obj_name):
utils.log_info(f"Updating Physics Object source json name: {obj_source_name} to {new_obj_name}")
obj.name = new_obj_name
obj.name = new_obj_name
obj.data.name = new_obj_name
obj.data.name = new_obj_name
obj_name = new_obj_name
obj_safe_name = new_obj_name
obj_source_name = new_obj_name
# fetch or create the object json
obj_json = jsonutils.get_object_json(chr_json, obj)
physics_mesh_json = jsonutils.get_physics_mesh_json(physics_json, obj)
if not obj_json:
utils.log_info(f"Adding Object Json: {obj_name}")
obj_json = copy.deepcopy(params.JSON_MESH_DATA)
chr_json["Meshes"][obj_name] = obj_json
if not physics_mesh_json and obj_cache and obj_cache.cloth_physics == "ON":
utils.log_info(f"Adding Physics Object Json: {obj_name}")
physics_mesh_json = copy.deepcopy(params.JSON_PHYSICS_MESH)
physics_json[obj_name] = physics_mesh_json
for slot in obj.material_slots:
mat = slot.material
mat_name = mat.name
mat_cache = chr_cache.get_material_cache(mat)
source_changed = False
new_material = False
utils.log_info(f"Material: {mat.name}")
utils.log_indent()
if mat.name not in mats_processed.keys():
mats_processed[mat.name] = { "processed": False, "write_back": False, "copied": False, "remapped": False }
mat_data = mats_processed[mat.name]
if mat_cache:
mat_expected_source_name = (utils.safe_export_name(utils.strip_name(mat_name), is_material=True)
if revert_duplicates else
utils.safe_export_name(mat_name, is_material=True))
mat_source_name = mat_cache.source_name
source_changed = mat_expected_source_name != mat_source_name
if source_changed:
mat_safe_name = utils.safe_export_name(mat_name, is_material=True)
else:
mat_safe_name = mat_source_name
else:
new_material = True
mat_safe_name = utils.safe_export_name(mat_name, is_material=True)
mat_source_name = mat_safe_name
if mat_name != mat_safe_name:
new_mat_name = mat_safe_name
if new_material or source_changed:
new_mat_name = utils.make_unique_name(mat_safe_name, bpy.data.materials.keys())
utils.log_info(f"Using new safe Material name: {mat_name} to {new_mat_name}")
if source_changed:
if jsonutils.rename_json_key(obj_json["Materials"], mat_source_name, new_mat_name):
utils.log_info(f"Updating material json name: {mat_source_name} to {new_mat_name}")
if physics_mesh_json and jsonutils.rename_json_key(physics_mesh_json["Materials"], mat_source_name, new_mat_name):
utils.log_info(f"Updating physics material json name: {mat_source_name} to {new_mat_name}")
mat.name = new_mat_name
mat.name = new_mat_name
mat_name = new_mat_name
mat_safe_name = new_mat_name
mat_source_name = new_mat_name
# fetch or create the material json
write_json = prefs.export_json_changes
write_physics_json = write_json
write_textures = prefs.export_texture_changes
write_physics_textures = write_textures
mat_json = jsonutils.get_material_json(obj_json, mat)
physics_mat_json = jsonutils.get_physics_material_json(physics_mesh_json, mat)
# try to create the material json data from the mat_cache shader def
if mat_cache and not mat_json:
shader_name = params.get_shader_name(mat_cache)
json_template = params.get_mat_shader_template(mat_cache)
utils.log_info(f"Adding Material Json: {mat_name} for Shader: {shader_name}")
if json_template:
mat_json = copy.deepcopy(json_template)
obj_json["Materials"][mat_safe_name] = mat_json
write_json = True
write_textures = True
# fallback default to PBR material json data
if not mat_json:
utils.log_info(f"Adding Default PBR Material Json: {mat_name}")
mat_json = copy.deepcopy(params.JSON_PBR_MATERIAL)
obj_json["Materials"][mat_safe_name] = mat_json
write_json = True
write_textures = True
material_physics_enabled = physics.is_cloth_physics_enabled(mat_cache, mat, obj)
if physics_mesh_json and not physics_mat_json and material_physics_enabled:
physics_mat_json = copy.deepcopy(params.JSON_PHYSICS_MATERIAL)
physics_mesh_json["Materials"][mat_safe_name] = physics_mat_json
write_physics_json = True
write_physics_textures = True
if mat_cache:
utils.log_info("Writing Json:")
utils.log_indent()
# update the json parameters with any changes
if write_textures:
write_back_textures(mat_json, mat, mat_cache, base_path, old_name, bake_values, mat_data, images_processed)
if write_json:
write_back_json(mat_json, mat, mat_cache)
if write_physics_json:
# there isn't a meaningful way to convert between Blender physics and RL PhysX
pass
if write_physics_textures:
write_back_physics_weightmap(physics_mat_json, obj, mat, mat_cache, base_path, old_name, mat_data)
if revert_duplicates:
# replace duplicate materials with a reference to a single source material
# (this is to ensure there are no duplicate suffixes in the fbx export)
if mat_count[mat_safe_name] > 1:
new_mat = mat_remap[mat_safe_name]
slot.material = new_mat
utils.log_info("Replacing material: " + mat.name + " with " + new_mat.name)
changes.append(["MATERIAL_SLOT_REPLACE", slot, mat])
mat = new_mat
mat_name = new_mat.name
if mat_name != mat_safe_name:
utils.log_info(f"Reverting material name: {mat_name} to {mat_safe_name}")
mat.name = mat_safe_name
mat.name = mat_safe_name
utils.log_recess()
else:
# add pbr material to json for non-cached base object/material
write_pbr_material_to_json(mat, mat_json, old_path, old_name, bake_values)
# copy or remap the texture paths
utils.log_info("Finalizing Texture Paths:")
utils.log_indent()
if copy_textures:
images_copied = []
for channel in mat_json["Textures"].keys():
copy_and_update_texture_path(mat_json["Textures"][channel], "Texture Path", old_path, new_path, old_name, new_name, as_blend_file, mat_name, mat_data, images_copied)
if "Custom Shader" in mat_json.keys():
for channel in mat_json["Custom Shader"]["Image"].keys():
copy_and_update_texture_path(mat_json["Custom Shader"]["Image"][channel], "Texture Path", old_path, new_path, old_name, new_name, as_blend_file, mat_name, mat_data, images_copied)
if physics_mat_json:
copy_and_update_texture_path(physics_mat_json, "Weight Map Path", old_path, new_path, old_name, new_name, as_blend_file, mat_name, mat_data, images_copied)
else:
for channel in mat_json["Textures"].keys():
remap_texture_path(mat_json["Textures"][channel], "Texture Path", old_path, new_path, mat_data)
if "Custom Shader" in mat_json.keys():
for channel in mat_json["Custom Shader"]["Image"].keys():
remap_texture_path(mat_json["Custom Shader"]["Image"][channel], "Texture Path", old_path, new_path, mat_data)
if physics_mat_json:
remap_texture_path(physics_mat_json, "Weight Map Path", old_path, new_path, mat_data)
mat_data["processed"] = True
# texure paths
utils.log_recess()
# material
utils.log_recess()
# object
utils.log_recess()
if apply_fixes and prefs.export_bone_roll_fix:
if obj.type == "ARMATURE":
if utils.set_mode("OBJECT"):
utils.set_active_object(obj)
if utils.set_mode("EDIT"):
utils.log_info("Applying upper and lower teeth bones roll fix.")
bone = obj.data.edit_bones["CC_Base_Teeth01"]
bone.roll = 0
bone = obj.data.edit_bones["CC_Base_Teeth02"]
bone.roll = 0
utils.set_mode("OBJECT")
# as the baking system can deselect everything, reselect the export objects here.
utils.try_select_objects(objects, True)
return changes
def remap_texture_path(tex_info, path_key, old_path, new_path, mat_data):
# at this point all the image paths have been re-written as absolute paths
# (except those not used in the Blender material shaders)
if path_key in tex_info.keys():
if tex_info[path_key]:
tex_path = tex_info[path_key]
if os.path.isabs(tex_path):
abs_path = tex_path
else:
abs_path = os.path.normpath(os.path.join(old_path, tex_path))
rel_path = utils.relpath(abs_path, new_path)
tex_info[path_key] = os.path.normpath(rel_path)
utils.log_info(f"Remapping JSON texture path to: {tex_info[path_key]}")
return
def copy_and_update_texture_path(tex_info, path_key, old_path, new_path, old_name, new_name, as_blend_file, mat_name, mat_data, images_copied):
"""keep the same relative folder structure and copy the textures to their target folder.
update the images in the blend file with the new location."""
# at this point all the image paths have been re-written as absolute paths
# TODO: this needs to cope with materials being reused across multiple meshes
# currently it is stacking relative paths each time it's called...
sep = os.path.sep
old_tex_base = os.path.join(old_path, f"textures{sep}{old_name}")
old_fbm_base = os.path.join(old_path, f"{old_name}.fbm")
if path_key in tex_info.keys():
tex_path : str = tex_info[path_key]
if not os.path.isabs(tex_path):
tex_path = os.path.normpath(os.path.join(old_path, tex_path))
if tex_path:
old_abs_path = os.path.normpath(tex_path)
# old_path will only be set from a successful import from CC/iC
# so it should have expected the CC/iC folder structure
if old_path:
rel_tex_path = utils.relpath(os.path.normpath(tex_path), old_path)
# only remap the tex_path if it is inside the expected texture folders
if utils.path_is_parent(old_tex_base, old_abs_path) or utils.path_is_parent(old_fbm_base, old_abs_path):
if old_name != new_name:
rel_tex_path = rel_tex_path.replace(f"textures{sep}{old_name}{sep}{old_name}{sep}", f"textures{sep}{new_name}{sep}{new_name}{sep}")
rel_tex_path = rel_tex_path.replace(f"textures{sep}{old_name}{sep}", f"textures{sep}{new_name}{sep}")
rel_tex_path = rel_tex_path.replace(f"{old_name}.fbm{sep}", f"{new_name}.fbm{sep}")
new_abs_path = os.path.normpath(os.path.join(new_path, rel_tex_path))
new_rel_path = os.path.normpath(utils.relpath(new_abs_path, new_path))
utils.log_info(f"Remapping JSON texture path to: {new_rel_path}")
else:
# otherwise put the textures in folders in the textures/CHARACTER_NAME/Extras/MATERIAL_NAME/ folder
dir, file = os.path.split(tex_path)
extras_dir = f"textures{sep}{new_name}{sep}Extras{sep}{mat_name}"
new_rel_path = os.path.normpath(os.path.join(extras_dir, file))
new_abs_path = os.path.normpath(os.path.join(new_path, new_rel_path))
utils.log_info(f"Setting JSON texture path to: {new_rel_path}")
copy_file = False
if os.path.exists(old_abs_path):
if os.path.exists(new_abs_path):
if not cmp(old_abs_path, new_abs_path):
copy_file = True
else:
copy_file = True
if copy_file:
# make sure path exists
dir_path = os.path.dirname(new_abs_path)
os.makedirs(dir_path, exist_ok=True)
# copy the texture
utils.log_info(f"Copying texture: {old_abs_path}")
utils.log_info(f" to: {new_abs_path}")
shutil.copyfile(old_abs_path, new_abs_path)
# update the json texture path with the new relative path
tex_info[path_key] = new_rel_path
# update images with changed file path (if it changed, and only if exporting as blend file)
if as_blend_file and os.path.exists(old_abs_path) and os.path.exists(new_abs_path):
# if the original path and new path are different
if os.path.normpath(old_abs_path) != os.path.normpath(new_abs_path):
image : bpy.types.Image
for image in bpy.data.images:
# for each image not already copied
if image and image.filepath and image not in images_copied:
image_file_path = bpy.path.abspath(image.filepath)
if os.path.exists(image_file_path):
# if this is the image specified in the json path
if os.path.samefile(image_file_path, old_abs_path):
utils.log_info(f"Updating .blend Image: {image.name}")
utils.log_info(f" to: {new_abs_path}")
image.filepath = new_abs_path
images_copied.append(image)
def restore_export(export_changes : list):
if not export_changes:
return
# undo everything prep_export did
# (but don't bother with the json data as it is temporary)
for info in export_changes:
op = info[0]
if op == "OBJECT_RENAME":
obj = info[1]
obj.name = info[2]
obj.name = info[2]
obj.data.name = info[3]
obj.data.name = info[3]
elif op == "MATERIAL_RENAME":
mat = info[1]
mat.name = info[2]
mat.name = info[2]
elif op == "MATERIAL_SLOT_REPLACE":
slot = info[1]
slot.material = info[2]
slot.material = info[2]
return
def get_prop_value(mat_cache, prop_name, default):
parameters = mat_cache.parameters
try:
return eval("parameters." + prop_name, None, locals())
except:
return default
def write_back_json(mat_json, mat, mat_cache):
shader_name = params.get_shader_name(mat_cache)
shader_def = params.get_shader_def(shader_name)
if mat_json is None:
return
if shader_def:
if "vars" in shader_def.keys():
for var_def in shader_def["vars"]:
prop_name = var_def[0]
prop_default = var_def[1]
func = var_def[2]
if func == "":
args = var_def[3:]
json_var = args[0]
if json_var and json_var != "":
prop_value = get_prop_value(mat_cache, prop_name, prop_default)
jsonutils.set_material_json_var(mat_json, json_var, prop_value)
if "export" in shader_def.keys():
for export_def in shader_def["export"]:
json_var = export_def[0]
json_default = export_def[1]
func = export_def[2]
args = export_def[3:]
json_value = shaders.eval_parameters_func(mat_cache.parameters, func, args, json_default)
jsonutils.set_material_json_var(mat_json, json_var, json_value)
def write_back_textures(mat_json : dict, mat, mat_cache, base_path, old_name, bake_values, mat_data, images_processed):
global UNPACK_INDEX
prefs = bpy.context.preferences.addons[__name__.partition(".")[0]].preferences
if mat_json is None:
return
shader_name = params.get_shader_name(mat_cache)
rl_shader_name = params.get_rl_shader_name(mat_cache)
shader_def = params.get_shader_def(shader_name)
bsdf_node, shader_node, mix_node = nodeutils.get_shader_nodes(mat, shader_name)
has_custom_shader = "Custom Shader" in mat_json.keys()
unpack_path = os.path.join(base_path, "textures", old_name, "Unpack")
bake_path = os.path.join(base_path, "textures", old_name, "Baked")
bake.init_bake()
UNPACK_INDEX = 1001
# determine if we are combining bump maps into normal maps:
normal_socket = params.get_shader_texture_socket(shader_def, "NORMAL")
bump_socket = params.get_shader_texture_socket(shader_def, "BUMP")
normal_connected = normal_socket and nodeutils.has_connected_input(shader_node, normal_socket)
bump_combining = False
if prefs.export_bake_bump_to_normal and prefs.export_bake_nodes:
bump_combining = normal_connected and bump_socket and nodeutils.has_connected_input(shader_node, bump_socket)
if shader_def and shader_node:
if "textures" in shader_def.keys():
for tex_def in shader_def["textures"]:
tex_type = tex_def[2]
shader_socket = tex_def[0]
tex_id = params.get_texture_json_id(tex_type)
is_pbr_texture = tex_type in params.PBR_TYPES
is_pbr_shader = shader_name == "rl_pbr_shader" or shader_name == "rl_sss_shader"
tex_node = nodeutils.get_node_connected_to_input(shader_node, shader_socket)
tex_info = None
bake_shader_output = False
bake_shader_socket = ""
bake_shader_size = 64
roughness_modified = False
if tex_type == "ROUGHNESS":
roughness = 0.5
if nodeutils.is_input_socket_connected(shader_node, "Roughness Map"):
roughness = nodeutils.get_node_input(shader_node, "Roughness Map", 0.5)
def_min = 0
def_max = 1
def_pow = 1
if shader_name == "rl_skin_shader" or shader_name == "rl_head_shader":
def_min = 0.1
roughness_min = nodeutils.get_node_input(shader_node, "Roughness Min", def_min)
roughness_max = nodeutils.get_node_input(shader_node, "Roughness Max", def_max)
roughness_pow = nodeutils.get_node_input(shader_node, "Roughness Power", def_pow)
if roughness_min != def_min or roughness_max != def_max or roughness_pow != def_pow or roughness != 0.5:
roughness_modified = True
# find or generate tex_info json.
if is_pbr_texture:
# CC3 cannot set metallic or roughness values with no texture, so must bake a small value texture
if not tex_node and prefs.export_bake_nodes:
if tex_type == "ROUGHNESS":
if bake_values and roughness_modified:
bake_shader_output = True
bake_shader_socket = "Roughness"
elif not bake_values:
mat_json["Roughness_Value"] = roughness
elif tex_type == "METALLIC":
metallic = nodeutils.get_node_input(shader_node, "Metallic Map", 0)
if bake_values and metallic > 0:
bake_shader_output = True
bake_shader_socket = "Metallic"
elif not bake_values:
mat_json["Metallic_Value"] = metallic
# fetch the tex_info data for the channel
if tex_id in mat_json["Textures"]:
tex_info = mat_json["Textures"][tex_id]
# or create a new tex_info if missing or baking a new texture
elif tex_node or bake_shader_output:
tex_info = copy.deepcopy(params.JSON_PBR_TEX_INFO)
location, rotation, scale = nodeutils.get_image_node_mapping(tex_node)
tex_info["Tiling"] = [scale[0], scale[1]]
tex_info["Offset"] = [location[0], location[1]]
mat_json["Textures"][tex_id] = tex_info
# note: strength values for textures defined in the shader vars are written after in write_back_json()
elif has_custom_shader:
if tex_id in mat_json["Custom Shader"]["Image"]:
tex_info = mat_json["Custom Shader"]["Image"][tex_id]
elif tex_node:
tex_info = copy.deepcopy(params.JSON_CUSTOM_TEX_INFO)
mat_json["Custom Shader"]["Image"][tex_id] = tex_info
# if bump and normal are connected and we are combining them,
# remove bump maps from the Json and don't process it:
if tex_info and tex_type == "BUMP" and bump_combining:
tex_info = None
del mat_json["Textures"][tex_id]
if tex_info:
processed_image = None
if tex_type in mat_data.keys():
processed_image = mat_data[tex_type]
if processed_image:
utils.log_info(f"Resusing already processed material image: {processed_image.name}")
if tex_node or bake_shader_output:
image : bpy.types.Image = None
# re-use the already processed image if available
if processed_image:
image = processed_image
else:
if bake_shader_output:
image = bake.bake_node_socket_input(bsdf_node, bake_shader_socket, mat, tex_id, bake_path, override_size = bake_shader_size)
elif tex_node and tex_node.type == "TEX_IMAGE":
if prefs.export_bake_nodes and tex_type == "NORMAL" and bump_combining:
image = bake.bake_rl_bump_and_normal(shader_node, bsdf_node, shader_socket, bump_socket, "Normal Strength", "Bump Strength", mat, tex_id, bake_path)
else:
image = tex_node.image
elif prefs.export_bake_nodes:
# if something is connected to the shader socket but is not a texture image
# and baking is enabled: then bake the socket input into a texture for exporting:
if tex_type == "NORMAL" and bump_combining:
image = bake.bake_rl_bump_and_normal(shader_node, bsdf_node, shader_socket, bump_socket, "Normal Strength", "Bump Strength", mat, tex_id, bake_path)
elif tex_type == "ROUGHNESS" and is_pbr_shader and roughness_modified:
image = bake.bake_node_socket_input(bsdf_node, "Roughness", mat, tex_id, bake_path,
size_override_node = shader_node, size_override_socket = "Roughness Map")
else:
image = bake.bake_node_socket_input(shader_node, shader_socket, mat, tex_id, bake_path)
tex_info["Texture Path"] = ""
mat_data[tex_type] = image
if image:
try_unpack_image(image, unpack_path, True)
if image.filepath:
image_data = None
if image in images_processed.keys():
image_data = images_processed[image]
else:
abs_image_path = os.path.normpath(bpy.path.abspath(image.filepath))
image_data = { "old_path": abs_image_path }
images_processed[image] = image_data
abs_image_path = image_data["old_path"]
tex_info["Texture Path"] = abs_image_path
utils.log_info(f"{mat.name}/{tex_id}: Source texture path: {abs_image_path}")
mat_data["write_back"] = True
def write_back_physics_weightmap(physics_mat_json : dict, obj, mat, mat_cache, base_path, old_name, mat_data):
global UNPACK_INDEX
prefs = bpy.context.preferences.addons[__name__.partition(".")[0]].preferences
if physics_mat_json is None:
return
unpack_path = os.path.join(base_path, "textures", old_name, "Unpack")
UNPACK_INDEX = 1001
image = physics.get_weight_map_from_modifiers(obj, mat)
if image:
mat_data["WEIGHTMAP"] = image
try_unpack_image(image, unpack_path, True)
if image.filepath:
abs_image_path = bpy.path.abspath(image.filepath)
if abs_image_path:
utils.log_info(f"{mat.name}: Using new weight map texture path: {abs_image_path}")
physics_mat_json["Weight Map Path"] = abs_image_path
def get_unique_path(path):
if os.path.exists(path):
dir, file = os.path.split(path)
name, ext = os.path.splitext(file)
index = 1001
file = name + "_" + str(index) + ext
path = os.path.join(dir, file)
while os.path.exists(path):
index += 1
file = name + "_" + str(index) + ext
path = os.path.join(dir, file)
return path
def try_unpack_image(image, folder, index_suffix = False):
global UNPACK_INDEX
try:
if image.packed_file:
if image.filepath:
temp_dir, name = os.path.split(bpy.path.abspath(image.filepath))
else:
name = image.name
if image.file_format == "PNG":
name = name + ".png"
elif image.file_format == "JPEG":
name = name + ".jpg"
else:
name = name + "." + image.file_format.lower()
if index_suffix:
root, ext = os.path.splitext(name)
name = root + "_" + str(UNPACK_INDEX) + ext
UNPACK_INDEX += 1
image_path = os.path.join(folder, name)
utils.log_info(f"Unpacking image: {name}")
if not os.path.exists(folder):
os.makedirs(folder)
image.unpack(method = "REMOVE")
image.filepath_raw = image_path
image.save()
return True
except:
utils.log_warn(f"Unable to unpack image: {name}")
return False
def unpack_embedded_textures(chr_cache, chr_json, objects, base_path):
prefs = bpy.context.preferences.addons[__name__.partition(".")[0]].preferences
unpack_folder = None
if chr_cache:
unpack_folder = os.path.join(base_path, "textures", chr_cache.import_name, "Unpack")
else:
unpack_folder = os.path.join(base_path, "textures", "Unpack")
if unpack_folder:
utils.log_info(f"Unpacking embedded textures to: {unpack_folder}")
if not os.path.exists(unpack_folder):
os.makedirs(unpack_folder, exist_ok=True)
obj : bpy.types.Object
for obj in objects:
obj_json = jsonutils.get_object_json(chr_json, obj)
if obj_json and utils.object_exists_is_mesh(obj):
for slot in obj.material_slots:
mat = slot.material
mat_json = jsonutils.get_material_json(obj_json, mat)
mat_cache = chr_cache.get_material_cache(mat)
if mat_cache and mat_json:
for tex_mapping in mat_cache.texture_mappings:
image : bpy.types.Image = tex_mapping.image
if image:
try_unpack_image(image, unpack_folder)
abs_image_path = bpy.path.abspath(image.filepath)
# fix the texture json data path:
try:
tex_type = tex_mapping.texture_type
tex_id = params.get_texture_json_id(tex_type)
if tex_id in mat_json["Textures"]:
tex_info = mat_json["Textures"][tex_id]
# the fbx importer will assign the diffuse alpha to the opacity channel, even if
# there is an opacity texture present.
# this means it will incorrectly set the opacity with the diffuse
# though this will be corrected later by the texture write back,
# if no write back this will be wrong, so remove the opacity Json data
if not prefs.export_texture_changes:
dir, name = os.path.split(abs_image_path)
if "_Diffuse" in name and tex_type == "ALPHA":
utils.log_info(f"Diffuse connected to Alpha, removing Opacity data from Json.")
del mat_json["Textures"][tex_id]
tex_info = None
if tex_info:
tex_info["Texture Path"] = abs_image_path
utils.log_info(f"Updating embedded image Json data: {abs_image_path}")
except:
utils.log_warn(f"Unable to update embedded image Json: {image.name}")
def get_export_objects(chr_cache, include_selected = True):
"""Fetch all the objects in the character (or try to)"""
objects = []
if include_selected:
objects.extend(bpy.context.selected_objects)
if chr_cache:
arm = chr_cache.get_armature()
if arm:
arm.hide_set(False)
if arm not in objects:
objects.append(arm)
for obj_cache in chr_cache.object_cache:
if utils.object_exists_is_mesh(obj_cache.object):
if obj_cache.object.parent == arm:
obj_cache.object.hide_set(False)
if obj_cache.object not in objects:
objects.append(obj_cache.object)
for obj in arm.children:
if utils.object_exists_is_mesh(obj): # and obj.visible_get():
if obj not in objects:
objects.append(obj)
else:
arm = None
if bpy.context.active_object and bpy.context.active_object.type == "ARMATURE":
arm = bpy.context.active_object
if not arm:
for obj in bpy.context.selected_objects:
if obj.type == "ARMATURE":
arm = obj
if not arm:
for obj in bpy.context.selected_objects:
if obj.parent and obj.parent.type == "ARMATURE":
arm = obj.parent
if arm:
arm.hide_set(False)
if arm not in objects:
objects.append(arm)
utils.log_info(f"Character Armature: {arm.name}")
for obj in arm.children:
if utils.object_exists_is_mesh(obj): # and obj.visible_get():
if obj not in objects:
utils.log_info(f" Including Object: {obj.name}")
objects.append(obj)
return objects
def set_T_pose(arm, chr_json):
utils.log_info("Putting character in T-Pose.")
if utils.edit_mode_to(arm):
left_arm_edit = bones.get_edit_bone(arm, ["CC_Base_L_Upperarm", "L_Upperarm", "upperarm_l"])
right_arm_edit = bones.get_edit_bone(arm, ["CC_Base_R_Upperarm", "R_Upperarm", "upperarm_r"])
# test for A-pose
world_x = mathutils.Vector((1, 0, 0))
a_pose = False
if left_arm_edit and world_x.dot(left_arm_edit.y_axis) < 0.9:
a_pose = True
if right_arm_edit and world_x.dot(right_arm_edit.y_axis) > -0.9:
a_pose = True
# Set T-pose
if a_pose:
bones.clear_pose(arm)
left_arm_pose = bones.get_pose_bone(arm, ["CC_Base_L_Upperarm", "L_Upperarm", "upperarm_l"])
right_arm_pose = bones.get_pose_bone(arm, ["CC_Base_R_Upperarm", "R_Upperarm", "upperarm_r"])
angle = 30.0 * math.pi / 180.0
if left_arm_pose:
left_arm_pose.rotation_mode = "XYZ"
left_arm_pose.rotation_euler = [0,0,angle]
left_arm_pose.rotation_mode = "QUATERNION"
if right_arm_pose:
right_arm_pose.rotation_mode = "XYZ"